Home » Corona Ring on Surge Arresters and other EHV equipment
Power Systems

Corona Ring on Surge Arresters and other EHV equipment

Have you ever seen a ring around the Surge Arrester or other EHV equipment? What is the purpose of the Ring around the Extra High Voltage (EHV) equipment? What is the use of big rings at EHV testing centers?

Corona Ring:

This Metal Ring what we see in the substations and other transmission line network is “Corona Ring”. At higher voltages such as in EHV transmission networks corona discharge effect is prominent. Corona Ring distributes the electrical potential gradient evenly and maintains the maximum value below the threshold limits of the corona effect. Corona Rings are employed at high altitude electrical equipment where density of the air is less.

Corona-Ring-on-Surge-Arresters
Corona Ring on Surge Arresters

Similar Articles:

Related Articles

Factors affect Voltage Level Selection in Service System

S Bharadwaj Reddy

Ferroresonance in Power Transformers

S Bharadwaj Reddy

Advantages & Disadvantages of AC power and DC power

S Bharadwaj Reddy

Shunt Vs Series Capacitors Advantages

S Bharadwaj Reddy

Shunt Capacitor Advantages in Power System

S Bharadwaj Reddy

Harmonics Disadvantages in Power System

S Bharadwaj Reddy

Leave a Comment

This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read More

WordPress Image Lightbox